
# Summary

Title: Data Release for A search for extremely-high-energy neutrinos and first constraints on the ultra-high-energy cosmic-ray proton fraction with IceCube

The IceCube observatory analyzed 12.6 years of data 
in search of extremely-high-energy (EHE) neutrinos above 5 PeV.
The resultant limit of the search (Fig 1), 
and the effective area of the event selection (Fig 7),
are provided in this data release.


# Contents

- README file: this file

- `differential_limit_and_sensitivity.csv`: a comma separated value file,
giving the observed experimental differential limit, 
and sensitivity, of the search as a function of neutrino energy.
This is the content of Fig 1 in the paper.
The first column is the neutrino energy in GeV.
The second column is the limit in units of GeV/cm2/s/sr.
The third column is the sensitivity in units of GeV/cm2/s/sr.

- `effective_area.csv`: a comma separated value file,
giving the effective area of the search as a function of energy.
This is the content of Fig 7 in the paper.
The first column is the neutrino energy in GeV.
The second column is the total effective area of the search, 
summed across neutrino flavors, 
and averaged across neutrinos and antineutrinos, in meters-squared.
The third column is the effective area of the search for the average of electron neutrino and electron antineutrinos in units of meters-squared.
The fourth column is the same as the third, but for muon-flavor neutrinos.
The fifth column is the same as the third and fourth, but for tau-flavor neutrinos.

- `demo.py`: a short python script to demonstrate how to read the files.
Run like `python demo.py`. A standard base python installation is sufficient,
as the only dependencies are numpy and matplotlib.


# Contacts

For any questions about this data release, please write to analysis@icecube.wisc.edu
